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Table 2.
Parametric map of SN 2024bch: general parameters of the event, properties of the ejecta, properties of the photosphere, and main parameters of the progenitor star.
| Parameter | Value |
|---|---|
| t0 (MJD) | 60337.4 ± 1.9 |
| tmax (MJD) | 60347.3 ± 1.7 |
| z | 0.00386 ± 0.00016 |
| d(a) (Mpc) | 17.58 ± 1.09 |
| EB-V(b) | 0.049 |
| Vsh (km s−1) | 3088 ± 50 |
| Vp(c) (km s−1) | 4688 ± 50 |
| Mej (M⊙) | 9.72 ± 2.24 |
| Etot (1051 erg) | 1.27 ± 0.27 |
| MNi (M⊙) | 0.032 ± 0.008 |
| Lpseudo(c) (1041 erg s−1) | 13.4 ± 1.0 |
| Lbol(c) (1043 erg s−1) | 1.1 ± 0.7 |
| Tbb(c) (103 K) | 17.70 ± 3.02 |
| Rbb(d) (103R⊙) | 43.31 ± 7.87 |
| Mpr (M⊙) | 11 − 20 |
| Rpr (R⊙) | 531 ± 125 |
| Lpr (log L/L⊙) | 3.81 − 4.82 |
| Tpr (K) | 2250 − 4023 |
Notes.
(b)
From Andrews et al. (2025);
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